DRIVE. RESTORE. T2 Plus. Driven Equilibrium FSE - 180 & 90 RF pulse added to ... FIESTA-C. --. CISS. --. Phase Balan
Annotation Guide for
MRI
™
Acronym
Pocket Guide
Annotation Guide for Hitachi Medical Systems America Inc. 1959 Summit Commerce Park Twinsburg, Ohio 44087 Tel: 330.425.1313 800.800.3106 Fax: 330.963.0749 www.hitachimed.com Hitachi Medical Corporation Akihabara UDX 4-14-1 Soto-Kanda Chiyoda-ku, Tokyo 101-0021, JAPAN Tel: 81.3.3526.8407 Fax: 81.3.3526.8418 © 2011 Hitachi Medical Systems America Inc 0311/DM#56428 v4 All rights reserved.
Hitachi
GE
Philips
Siemens
Toshiba
Description
*Not all features are available on all Hitachi MR Imagers. Competitors’ acronyms contained in this document are based on interpretation of available data at the time this material was prepared and may require independent verification.
FSE
FSE
TSE(Turbo)
TSE, HASTE
FastSE/FastASE
Fast Spin Echo - Multiple 180 RF pulses to rapidly fill K-Space, can be combined with half scan technique for even faster scans.
DE-FSE/FIR
FR-FSE/FRFSE-IR
DRIVE
RESTORE
T2 Plus
Driven Equilibrium FSE - 180 & 90 RF pulse added to end of FSE echo train to restore longitudinal magnetization, use to increase T2 weighting.
FIR
FIR
IR TSE
IR TSE
FastIR
Fast Inversion Recovery - IR pulse precedes FSE sequence. Typically used to create either fat suppressed (FIR-STIR) or CSF suppressed (FIR-FLAIR) images.
primeFSE
--
--
--
--
Hitachi proprietary FSE technique enables direct TE entry and receiver bandwidth adjustment. Excellent for imaging in presence of prostheses.
Real-IR
--
Real IR
TrueIR
Real IR
Inversion recovery or FIR sequence using “real” reconstruction instead of magnitude. Expands T1 contrast range.
3D-GEIR
BRAVO
3D-T1 TFE
MPRAGE
--
Gradient Echo Inversion Recovery - Isotropic 3D T1 imaging. Images can be reformatted in arbitrary planes with high image quality.
GE
GRE
FFE
FLASH, TurboFLASH
FE/PFI
Gradient Echo - Gradient reversal refocuses echoes. Produces images that are PD, T1, and T2* weighted images depending on TR/TE and Flip Angle (FA).
SG
GRASS
FFE
FISP
FE/PFI
Steady State Acquisition Rewound Gradient Echo (SARGE™) - Short TR and rewinder pulses to create a steady state signal with T2* weighting.
RSSG
SPGR
T1-FFE
T1-FISP
FE
RF-Spoiled SG – Uses variable phase shifted excitation pulse to eliminate magnetization build-up, resulting in T1 weighted images.
TRSG
SSFP
T2-FFE
PSIF
SSFP
Time Reversed SG - Simultaneous SE and stimulated echo sampling for T2 weighting.
BASG
FIESTA
Balanced FFE
True FISP
True SSFP
Balanced SARGE - SG sequence with slice, phase, and frequency rewinder pulses. Images are mixed contrast T2/T1. High SNR with bright fluids.
PBSG
FIESTA-C
--
CISS
--
Phase Balanced SARGE – Balanced SARGE with alternating phase RF excitation to preserve image quality where fatty tissue is present.
RADAR™
PROPELLER
Multi-Vane
BLADE
JET
RADial Acquisition Regime – Radial K-space filling technique providing patient motion compensation and excellent image quality. Applicable to FSE, FIR, DWI, SE,BASG.
PERRM
RESP
PEAR
PACE
--
Phase Encode Reordering to Reduce Motion - Respiratory compensation technique.
FLUTE™
FT-MRA
BolusTrak, MobiTrak
Care Bolus
VisualPrep
FLUoro Triggered Examination - MRA technique, watch for bolus arrival with MR Fluoro, fast switch to 3D MRA when bolus arrives at area of interest.
TRAQ™
TRICKS
4D TRAK
TREAT,TWIST
Freeze Frame
Time Resolved AcQuisition - MRA technique, uses a ultra fast 3D dynamic scan for observation of blood kinetics.
VASC™
Flow Prepped FIESTA
Balanced FFE MRA
NATIVE True FISP
FBI, CIA
Veins and Arteries Sans Contrast - Non-contrast MR angiography technique for renal and peripheral MRA.
VASC-ASL
InHance InFlow IR
b-Trance
--
TimeSlip
VASC Arterial Spin Labeled Non Contrast MRA. Uses inversion pulse to highlight flowing blood.
PC-MRA
PC
PCA
Phase Contrast
PS
Phase Contrast MRA - Non contrast technique using gradient pulses to velocity encode flowing blood signal (VENC).
PEAKS™
Elliptic Centric
CENTRA
Elliptical scanning
DRKS
PEak Arterial K Space filling method - Central K-space filling techniques used to optimize arterial visualization.
SSP™
Ramped RF
TONE
TONE
ISCE
Sloped Slab Profile - Varying excitation tip angle technique equalizes saturation of flowing blood for 3D MRA.
MTC
MTC
MTC
MTC
SORS-STC
Magnetization Transfer Contrast - Additional RF Pulse saturates bound water protein more than free water. Produces increased lesion conspicuity.
DS
POMP
Multi-Slice
Turbo Multi-Slice
QuadScan
Dual Slice - Simultaneous excitation of multiple slices. Can be applied to a wide range of pulse sequences for increased anatomical coverage.
FatSep™
IDEAL
mDIXON
DIXON
WFS
Fat Separation - Fat and water are separated with phase sensitive acquisition and reconstruction. Provides fat only and water only images. Usable with SE, GE, RSSG, and FSE pulse sequences.
RAPID™
ASSET/ARC
SENSE
IPAT, mSENSE, GRAPPA
SPEEDER
Rapid Acquisition through Parallel Imaging Design - Reduces k-space coverage requirements to deliver reduced scan time, increased temporal resolution for dynamic scans, and other clinical benefits.
RAPID™ 3D
LAVA XV VIBRANT XV
eTHRIVE
iPat extensions, 2 iPAT
--
Enables slice and/or phase acceleration for 3D acquisitions, useful for dynamic imaging
TIGRE™
VIBRANT (breast) FAME/LAVA (abd)
THRIVE
VIEWS(breast) VIBE (abd)
RADIANCE (breast) QUICK 3D (abd)
3D T1 Gradient Echo with RF fat saturation for Dynamic breast and abdomen.
WE
--
ProSet
Water Excitation
WET-PASTA
Water Excitation – Binomial pulse alternative to RF fat saturation. Used with 3D GE RSSG for dynamics, BASG for cartilage.
NATURAL™
PURE
CLEAR
Prescan Normalize
--
NATural Uniformity Realization Algorithm - Multi-channel RF coil sensitivity normalization. Multi-channel RF coil sensitivity normalization.
BSI
SWAN
Venous BOLD
SWI
FSBB
Blood Sensitive Imaging - T2* weighted images depict microbleeds, venous blood
